/*---------------------------------------------------------------------------*\
  =========                 |
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    \\  /    A nd           | Copyright (C) 2018-2025 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

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    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

\*---------------------------------------------------------------------------*/

#include "CoulaloglouTavlarides.H"
#include "phaseCompressibleMomentumTransportModel.H"
#include "addToRunTimeSelectionTable.H"

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

namespace Foam
{
namespace populationBalance
{
namespace coalescenceModels
{
    defineTypeNameAndDebug(CoulaloglouTavlarides, 0);
    addToRunTimeSelectionTable
    (
        coalescenceModel,
        CoulaloglouTavlarides,
        dictionary
    );
}
}
}


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::populationBalance::coalescenceModels::CoulaloglouTavlarides::
CoulaloglouTavlarides
(
    const populationBalanceModel& popBal,
    const dictionary& dict
)
:
    coalescenceModel(popBal, dict),
    C1_("C1", dimless, dict, 2.8),
    C2_("C2", inv(dimArea), dict, 1.83e9)
{}


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

void Foam::populationBalance::coalescenceModels::CoulaloglouTavlarides::
addToCoalescenceRate
(
    volScalarField::Internal& coalescenceRate,
    const label i,
    const label j
)
{
    const dimensionedScalar& vi = popBal_.v(i);
    const dimensionedScalar& vj = popBal_.v(j);

    const volScalarField::Internal& rhoc = popBal_.continuousPhase().rho();

    tmp<volScalarField> tsigma(popBal_.sigmaWithContinuousPhase(i));
    const volScalarField::Internal& sigma = tsigma();

    tmp<volScalarField> tmuc(popBal_.continuousPhase().fluidThermo().mu());
    const volScalarField::Internal& muc = tmuc();
    tmp<volScalarField> tepsilonc(popBal_.continuousTurbulence().epsilon());
    const volScalarField::Internal& epsilonc = tepsilonc();

    coalescenceRate +=
        C1_*(pow(vi, 2.0/3.0) + pow(vj, 2.0/3.0))
       *sqrt(pow(vi, 2.0/9.0) + pow(vj, 2.0/9.0))
       *cbrt(epsilonc)
       /(1 + popBal_.alphas()())
       *exp
        (
          - C2_*muc*rhoc*epsilonc/sqr(sigma)
           /pow3(1 + popBal_.alphas()())
           *pow4(cbrt(vi)*cbrt(vj)/(cbrt(vi) + cbrt(vj)))
        );
}


// ************************************************************************* //
